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[PATCH 5/9] mips: dma_debug: add debug_dma_mapping_error support

To: Joerg Roedel <joro@8bytes.org>, a-jacquiot@ti.com, fenghua.yu@intel.com, catalin.marinas@arm.com, lethal@linux-sh.org, benh@kernel.crashing.org, ralf@linux-mips.org, tony.luck@intel.com, davem@davemloft.net, m.szyprowski@samsung.com, msalter@redhat.com, monstr@monstr.eu, Ming Lei <ming.lei@canonical.com>
Subject: [PATCH 5/9] mips: dma_debug: add debug_dma_mapping_error support
From: Shuah Khan <shuah.khan@hp.com>
Date: Fri, 23 Nov 2012 14:34:56 -0700
Cc: linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org, linux-ia64@vger.kernel.org, linux-mips@linux-mips.org, linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, microblaze-uclinux@itee.uq.edu.au, shuahkhan@gmail.com, LKML <linux-kernel@vger.kernel.org>
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Add dma-debug interface debug_dma_mapping_error() to debug drivers that fail
to check dma mapping errors on addresses returned by dma_map_single() and
dma_map_page() interfaces.

Signed-off-by: Shuah Khan <shuah.khan@hp.com>
---
 arch/mips/include/asm/dma-mapping.h |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/mips/include/asm/dma-mapping.h 
b/arch/mips/include/asm/dma-mapping.h
index be39a12..006b43e 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -40,6 +40,8 @@ static inline int dma_supported(struct device *dev, u64 mask)
 static inline int dma_mapping_error(struct device *dev, u64 mask)
 {
        struct dma_map_ops *ops = get_dma_ops(dev);
+
+       debug_dma_mapping_error(dev, mask);
        return ops->mapping_error(dev, mask);
 }
 
-- 
1.7.9.5





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